Cop winding machine



June 10, 1941- w. REINERS ETAL COP WINDING MACHINE Filed 'Feb. 25, 1939 3 Sheets-Sheet l June 10, 1941. w. RE INERS ETAL 2,244,851

COP WINDING MACHINE Filed Feb. 25, 1939 3 Sheets-Sheet 2 w. REINERS ETAL GOP WINDING MACHINE Filed Feb. 25, 1939 a she e ts sheet a I Patented June 10, 1941 UNITED STATES PATENT OFFICE OOPWINDINGMAOHINE Applicatioin February 25, 1939 In German yMarehS, 9 8

In building up a package of yarn or thread to form a cop it is a common practice first to wind a layer or layers of filament of about one quarter the length of the cop, and then to wind successive layers with successive shifts away from the base, either the yarn guide or the spindle or cop tube being moved to produce the shift.

Our invention is concerned with cop winding machines in which the laying of the filament is effected with the aid of a traversing device, e. g. a grooved traverse drum, and according to the invention the shift referred to is produced by means of a feed mechanism comprising afeeler wheel which is engaged by the returning filament when for the time being maximum diameter is attained, and is thereby rotated. This feeler is intermittently moved out of contact with the package, and this movement is transmitted to the traverse drum or equivalent traverse device.

The drum and the feed mechanism'are combined into a unit, herein called a builder unit,

the spindle I and a cupped head 9 in a bearing facing the spindle. A gear wheel II on the spindle 3 engages a gear wheel II on a shaft I 2 driving a helically grooved traverse drum It. The shaft I2 is flattened on one side. The drum lgl has a single helical groove extending from near one end i to near the other, with short oppositely directed oppositely directed extensions of the groove afford by means of a frame. The drum may have a single helical groove, giving controlled traverse in one direction only, with return traverse due brief guidance to the yarn when it becomes disengaged from the main groove at the end of the controlled traverse, and when it is about to enter the main groove at the end of the uncontrolled traverse, which is limited by the yarn meeting a guide or deflector I 5. 4

A boss at one end of the drum is engaged with a slotted extension II of a bracket Ii projecting from a slide l8 mounted on a spindle i9 and a guide bar It. The spindle Ithas a screw thread on one side, and is flattened on the other side. It has rotatably mounted on it a feeler wheel 23, the hub of which is internally threaded to engage the threads of spindle H. The hub of the feeler can be pushed against the flat side of spindle I9, to

path of its progressive movement is inclined to- 4 the axis of the'winding spindle. The invention is illustrated in the accompanying drawings, in which Figs. 1 and 2 represent one form of construc-'- tion, Fig. 1 being asectional elevation and Fig. 2 a section on the line ]III of Fig. 1

Fig. 3 is a sectional elevation of another form of construction, and v Fig, 4 is a section on the line IV-IV of Fig. 3.

Figs. 5 and 6 are a side view and front view respectively, of a modified form of the builder unit and I Figs. '7 and 8 are similar views illustrating another modification.

Referring first to Figs. 1 and 2, a friction wheel disengage the threads of the hub from the threads of the spindle l9 and permit the feeler to be moved freely lengthwise of the spindle. The hub of feeler wheel 23 is held in engagement with the threads of spindle is by a spring 21, which bears against a short arm 28 pivoted at It and formed with a ring portion surrounding the hub of wheel 23. A finger 2'! serves as a handle for throwing arm 28 to the right (Fig. 2), to disengage the feeler wheel from the threads of spindle It, so that the bracket I8 can slide freely along the bar 20. The spindle l9 and bar, 20 are connected with each other by bars 2L1: to form a small frame. The bar .20 has revolubly mounted on it a collar 24, which can be fixed to it by means of a set screw 25. The collar has an arm resting against an abutment 26, whereby the collar is restrained irom rotation. By angularly adjusting the bar 2' in the collar the normal distance of the wheel 21 from the cop tube can be regulated. A worm ll on the spindle l engages a worm wheel 4 l on a shaft 42, to which is fixed a cam 43 The bar 20 is axially movable, and a boss 44 at its left hand end (Fig. 1) is held against the cam 43 by a spring 45, so that during rotation of the cam the bar is reciprocated, and reciprocates the bracket it and the drum l3 The winding of a cop starts with the feeler.

, certain diameter, the thread on the return of the traverse movement engages under feeler wheel 23 and rotates it a little, moving the frame it to the right by the amount of the thread diameter. Meanwhile the cam 63 causes an intermittent toand-fro movement of the frame 58, parallel to the axis of the spindle, in which movement the feeler wheel and traverse drum. take part. This sup= plementary movement withdraws the feeler wheel 23 from contact with the cop and modifies the action of the traverse drum,with the result that the feeling action is made more delicate and less liable to damage the thread, and the thread is laid more perfectly at the reversing point.

When the cop has attained the required length the thread guide it is rocked slightly to the left (Fig. 2), finger 29 is operated to reiease the healer wheel from the threads of spindle it, and the feeler and traverse unit is pushed back to starting position, winding back the thread over the top inaquick spiral. The cop is then released by pulling out button 9' and a new tube is inserted. The construction shown in Figs. 3 and t is the same as that shown in Figs. 1 and 2, in all parts except the builder mechanism and thread traverse mechanism. In this case the screw spindle is not capable of rocking with respect to the cop spindle, the feeler wheel being mounted to rock about the screw spindle instead. A shaft ltd mounted to reciprocate in bearings it and H El, and a shaft the mounted to reciprocate in bearings 72 and it are unitedinto a frame by cross bars 26 and 22. A

yoke 98a is slidably mounted by bearings til, @8,

and til on shafts 09a and 241312 and between its arms is a box M, which supports the feeler wheel 23. The feeler wheel is carried by a shaft l5 rotatably mounted in a bearing it and carrying a spur gear as at its inner end. The gear 83 meshes with a gear 3 3 revolubly mounted on spindle its. The spindle is threaded on one side and flat on the other, like spindle it, except that the threads are on the opposite side of the spindle. The hub of gear is internally threaded, to engage the threads of spindle its. A roch shaft ll? mounted in a hearing it has fixed to it outside box it a finger Eta and on its inner end an arm 283a iormed with a ring surrounding the hub of gear 343. A spring Zia presses arm Eta to the right (Fig. i) and holds the hub of gear M in engagement with the threads of spindle lea. Projecting rigidly from bearing iii: of yoke that is a slotted guide it, through which passes a screw a threaded into a hole in the box it.

Extending rigidly from bearing tilt of yoke its is a bracket its, which bears at its upperend a strap 8% surrounding a boss ti on traverse drum tile. The traverse drum, which, in this case hasa single-continuous groove, is fixed to a shaft Ma. The shaft 52a, which is rotatably and slidably mounted in bearings 82 and at, is keyed by flattened sides in the hub 36 of a gear its. The shaft 52a can slide longitudinally in the hub St and a closed tube may be provided to cover its projecting end.

In this case the cam 63 acts upon the end its aeea ssi of spindle Isa, to impart a supplementary move ment to the builder and traverse mechanisms. The device operates in substantially the same manner as the one first described. 'The adjustment of the feeler wheel 23 with-respect to .the cop tube is accomplished by loosening screw 25a, then rocking box it on spindle flea.

In the modification shown in Figs. 5 and 6 the builder unit comprises a frame formed of a longi tudinal bar 98, cross bars at and 92, and bearings $8, at, 95 and 96. The bearings 93 and 94 are slidably mounted upon a round rack bar i'tb,

while the bearings 95 and 96 are slidably mounted upon a flattened shaft i227. The rack bar tab can be mounted in the same way as the spindle ita of Fig. 3. The shaft itb may be driven in the same way as the shaft E2 in Fig. l. The bearing 96 has a tubular extension 9i? on which is rotatably mounted a feeler wheel 2%. This feeler wheel has a hub 5i extending to the left,,

provided with a worm to engage a worm wheel 52 fixed to a shaft 97!, which is rotatably mounted in a bracket 9t of cross bar at A gear 53 is mounted to slide longitudinally on shaft t? and has an extended hub 99 keyed to the shaft ill by a key iiti. The hub at bears a milled button 56, against which bears a spring till pressed inward by a cap tea on the end of shaft 9?. Normally the gear 53 meshes with rack bar Ebb and turning of the feeler wheel 23b moves the builder unit along the rack bar. For returning the builder unit to starting position the milled button 5% can be pulled out against the action of spring iti to disengage gear 53 from rack bar 1%, permitting the builder unit to he slid along the rack bar.

Between the feeler wheel 2th and bearing 95 a traverse drum it is mounted on shaft 1112b and keyed to it by the flat sides of the shaft. The feeler wheel 23b is cup-shaped and extends over the end of traverse drum it to the point where the helical groove of thetraverse drum terminates in one direction. Thus the contact rim of the feeler wheel is positioned to coincide with the change in direction of the traverse.

Figs. 7 and 8 show a modification in which the detector or feeler 230 is mounted on a vertical shaft and is arranged so that the returning filament is caught in the angle between the, surface of the cop cone and the side of the detector, thus ensuring that even with filaments of very high counts the wheel will be turned. The builder unit comprises a frame idc provided with bear= ings M95 and tilt in which the trunnions ti and E2 of a grooved traverse drum itc are journalled. A shaft 820 flattened on two sides extends slidably through the drum tile and is keyed to the drum by its flat sides. The trunnions ti and 62 of drum Mic are slightly eccentric with respect to shaft his, so that the frame the is oscillated as the d rotates. A fork bearing it? of frame its embraces a rack bar we to guide the lower part of the frame in its oscillating movement.

- The feeler wheel 28c is fixed to a shaft 5% Journailed in a bearing [1th on the horizontal arm Aid of frame Mic. The lower end of shaft MS has fixed to it a pinion the meshing with rack bar iQc. is the feeler wheel the moves into contact with the package 8, during its oscillation by the cocentric trunnions (ii, 62, it is rotated and feeds the builder unit along the rack bar itc. The intermittent contact of the feeler wheel 23 prevents constant friction with the toplayer of the package, which might cause damage.

. it will be understood that without departin from the principle of the invention the packagi secure by letters'Patent of the United States is:

e 1. In a cop winding machine, awinding spindle, a builder unit. mounted for movement at least approximately parallel to the axis of said winding spindle and comprising a rotatable traverse member having helical guide means and a feed mechanism including a ieeler adapted to feel the winding package and to actuate said iced mechanism to move said builder unitprogressively along said winding spindle, and means ior oscillating said ieeler to withdraw the same intermittently from contact with the winding package.

2. In a cop winding machine, a winding spindle,

a builder unit mounted for movement at least approximately parallelto the axis 01' said winding spindle and comprising a rotatable traverse member having helical guide means and a feed mechanism inluding a screw spindle at least approximittently from contact with the winding package;

3. A cop winding machine as described in claim 1, wherein said traverse member is in the form of a drum provided with a helical groove interrupted to cause the thread to run out of said groove near the limit'oi' one part oi its traverse, and means for guiding the thread to said drum at a slant with reference to the axis or said winding spindle, whereby the tension of the thread. causes it to return to the limit of the other part of its traverse a on escaping irom said groove.

4. In a cop winding machine s. winding spindle, a builder unit mounted for movement at least approximately parallel to the axis 01' said winding spindle and comprising a rotatable traverse member having helical guide means and a feed mechanism including a ieeler wheel mounted coaxially with said traverse member adapted to feel the winding package and to actuate said feed mechamately parallel to the axis oi said winding spindle and a ieeler wheel conected therewith adapted to feel the winding package and to coact with said screw spindle to move said builder unit progresfrom contact with the winding package.

WILBELM REINERS. GUSTAV KAELIBC'H. STEFAN FU'RST. 

